Text filtering

Roblox has a text filter that prohibits players from seeing profanity and restricts personally identifiable information, which replaces the now-discontinued Safe Chat that was previously used to prevent young players from sending messages that were not pre-programmed. The text filter is provided by the CommunitySift service. Since CommunitySift uses multiple rules and text classification techniques to filter phrases, the lists in this article are not representative of the words filtered.

In games, text filtering is done with two functions of the Chat service. FilterStringAsync is used to filter messages sent by one player and intended for a single other player, while FilterStringForBroadcast is used to filter messages broadcasted to all players. To be compliant with the filtering rules, game developers must filter all messages which are shown to players in GUI objects, character names, etc. If the place's creator failed to comply with this rule, their game would be put Under Review.

Criticism

Users are bothered by the fact they cannot say simple sentence words such as "the" and "my", and numbers, causing support groups to rise and users complaining about it on the ROBLOX forums.

This has now lead to Roblox revamping their filtering system. The parents of accounts under 13 can now only allow communications with people on the player's friend list or restrict chatting altogether. This also means that the filtering system for accounts under 13 and above 13 (13+) have become aggressive, blocking any numbers for those under 13 and simple words. As stated before, this also made the community very upset. Some people have also complained that they can't even say 'Roblox', though this is not confirmed.

List of filtered words

The chat uses a predefined list of words to filter. Messages that match one of the words in this list will not be broadcasted to other players at all.

This is the word blacklist used by Roblox, extracted from diogenes.fnt:

4uck

@_@_@Fuck...Me

ahole

anally

anus

ashole

asholes

asshole

assholes

asskisser

beastiality

beastility

bed

bedridde

bestiality

bich

biches

bicth

bitc

bitch

bitcher

bitchers

bitches

bitchin

bitching

bitchs

blowjob

blowjobs

boner

bullshit

bulshit

blunts

buttfuck

buttfucker

butthair

buttsex

buttsecs

buttseks

chink

circlejerk

clit

c0nd0ms

cond0ms

c0ndoms

cock

cock.

cocks

cocksuck

cocksucked

cocksucker

cocksucking

cocksucks

cok

condom

condoms

cooter

cum

cummer

cumming

cums

cumshot

cumshot

cunilingus

cunillingus

cunnilingus

cunt

cuntlick

cuntlicker

cuntlicking

cunts

cyberfuc

cyberfuck

cyberfucked

cyberfucker

cyberfuckers

cyberfucking

crap

dick

dicks

dike

dildo

dildoshit

dildos

dildos

dipshit

douche

douchebag

dyke

eat shit

ejaculate

ejaculated

ejaculates

ejaculating

ejaculatings

ejaculation

f***er

f***ing

fag

faget

fagg

fagget

fagging

faggit

faggot

faggs

fagit

fagot

fagots

fags

fapper

fapping

fappin

fawk

fcking

felatio

felatio

fellatio

fingerbang

fingerfuck

fingerfucked

fingerfucker

fingerfuckers

fingerfucking

fingerfucks

fistfuck

fistfucked

fistfucker

fistfuckers

fistfucking

fistfuckings

fistfucks

focking

fuck

fuck!

fucke

fucked

fucken

fucker

fuckers

fuckin

fucking

fuckings

fuckkkkkkkkkkkkkkkkk

fuckme

fucks

fucktard

fuckyou

fuk

fuker

fukin

fuking

fukk

fuks

furburger

gangbang

gangbanged

gangbangs

gaysex

gazongas

gazongers

gonads

gook

hardcoresex

hardon

homo

hooker

horniest

horny

hotsex

hump

jackass

jackingoff

jackoff

jack-off

jap

jerk-off

jew

jism

jiz

jizm

jizz

kike

kkk

kys

kock

kondum

kondums

kum

kummer

kumming

kums

kunilingus

lesbian

lesbo

lusting

master

merde

molest

mothafuck

mothafuck

mothafucka

mothafucka

mothafuckas

mothafuckas

mothafuckaz

mothafuckaz

mothafucked

mothafucked

mothafucker

mothafucker

mothafuckers

mothafuckers

mothafuckin

mothafuckin

mothafucking

mothafucking

mothafuckings

mothafuckings

mothafucks

mothafucks

motherfuck

motherfuck

motherfucked

motherfucker

motherfucker

motherfuckers

motherfuckers

motherfuckin

motherfuckin

motherfucking

motherfucking

motherfuckings

motherfuckings

motherfucks

motherfucks

nazi

nipples

niger

nigga

niggas

nigger

nigger

niggers

niggers

ODer

ODers

Online Dating

Online Dater

orgasim

orgasims

orgasm

orgasms

pecker

penis

popporn(or cockporn)

phonesex

phuked

phuking

phukked

phukking

phuk

phuks

phuq

pimp

pissoff

porn

porno

pornography

pornos

prick

pricks

prostitute

pusies

pussies

pussy

pussys

pusy

pusys

queer

queef

r@pe

r@ped

rape

raped

schlong

sex

sexx

sexy

sexxx

sheet

sheetopaper

shitfull

shiting

shitings

shits

shitted

shitter

shitters

shitting

shittings

shitty

shity

slut

sluts

smut

snatch

sodomite

sodomize

sodomizer

sodomy

spunk

tramp

twat

vagina

virginia

vibrator

wang

wank

wanker

wetback

whore

wop

wtf

A different filter is used for messages in games and on the website, when they are not in in-game chat, which replaces letters of words that are filtered by the pound (#) sign instead of blocking the messages completely. This filter list is not public.